Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Nomeie a margem de vitória quando o torneio é o Algarve Open de Portugal.
 ###Tabelas: CREATE TABLE division_one_final_table (division_one_final_table_id AUTO_INCREMENT PRIMARY KEY, Position INT, Team VARCHAR, Played INT, Drawn INT, Lost INT, Goals For INT, Goals Against INT, Goal Difference VARCHAR, Points 1 VARCHAR) CREATE TABLE european_tour_wins_19 (european_tour_wins_19_id AUTO_INCREMENT PRIMARY KEY, No. INT, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, To par VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR) CREATE TABLE united_kingdom (united_kingdom_id AUTO_INCREMENT PRIMARY KEY, Network VARCHAR, Origin of Programming VARCHAR, Language VARCHAR, Genre VARCHAR, Service VARCHAR) CREATE TABLE current_members_of_the_baltimore_city_delegation (current_members_of_the_baltimore_city_delegation_id AUTO_INCREMENT PRIMARY KEY, District INT, Place of Birth VARCHAR, Delegate VARCHAR, Party VARCHAR, Took Office INT, Committee VARCHAR) CREATE TABLE september (september_id AUTO_INCREMENT PRIMARY KEY, Week of VARCHAR, Tournament VARCHAR, Champions VARCHAR, Runners-up VARCHAR, Semifinalists VARCHAR)  
SELECT Margin of victory FROM european_tour_wins_19 WHERE Tournament = Algarve Open de Portugal